The judge on Thursday appointed attorney Derege Demissie to continue representing Phillipos.

Phillips is one of three University of Massachusetts Dartmouth students accused of helping Tsarnaev after the April 15 attack that killed three and injured more than 260.

The two others are accused of removing a laptop and backpack containing fireworks from Tsarnaev's dorm room three days after the bombing. They have pleaded not guilty to charges of obstruction of justice and conspiracy to obstruct justice.